Cover Vol.5 No.1, February 2008
text
article
2008
eng
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
0
http://ijfs.usb.ac.ir/article_2905_0ba1ebddb100516d815ebe45cc27db3b.pdf
dx.doi.org/10.22111/ijfs.2008.2905
THE p-CENTER PROBLEM ON FUZZY NETWORKS AND
REDUCTION OF COST
Sk. Md. Abu
Nayeem
Department of Mathematics, Jhargram Raj College, Jhargram,
West Bengal, 721 507, India
author
Madhumangal
Pal
Madhumangal Pal, Department of Applied Mathematics with Oceanology and Computer
Programming, Vidyasagar University, Midnapore, West Bengal, 721 102, India
author
text
article
2008
eng
Here we consider the
p-center problem on different types of fuzzy
networks. In particular, we are interested in the networks with interval and
triangular fuzzy arc lengths and vertex-weights. A methodology to obtain the
best satisfaction level of the decision maker who wishes to reduce the cost
within the tolerance limits is proposed. Illustrative examples are provided.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
1
26
http://ijfs.usb.ac.ir/article_313_0738a752fd403495bad8e7740e8f8abd.pdf
dx.doi.org/10.22111/ijfs.2008.313
INTELLIGENT TECHNIQUE OF CANCELING MATERNAL ECG IN
FECG EXTRACTION
C.
KEZI SELVA VIJIILA
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING KARUNYA
UNIVERSITY, COIMBATORE, INDIA
author
P.
KANAGASABAPATHY
DEAN MIT CAMPUS, ANNA UNIVERSITY, CHENNAL, INDIA
author
text
article
2008
eng
In this paper, we propose a technique of artificial intelligence called adaptive neuro fuzzy inference system (ANFIS) for canceling maternal electrocardiogram (MECG) in fetal electrocardiogram extraction (FECG).This technique is used to estimate the MECG present in the abdominal signal of a pregnant woman. The FECG is then extracted by subtracting the estimated MECG from the abdominal signal. Performance of the proposed method in terms of mean square error, signal to noise ratio is compared with neural network. Our results show that this method is a simple and powerful means for the extraction of FECG.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
27
45
http://ijfs.usb.ac.ir/article_314_f843ad26f87fb8068ddf60da36570ec3.pdf
dx.doi.org/10.22111/ijfs.2008.314
A COMMON FIXED POINT THEOREM FOR $\psi$-WEAKLY
COMMUTING MAPS IN L-FUZZY METRIC SPACES
R.
Saadati
Faculty of Sciences, University of Shomal, Amol, P.O. Box 731, Iran
author
S.
Sedghi
Department of Mathematics, Islamic Azad University-Ghaemshahr Branch,
Ghaemshar, P.O. Box 163, Iran
author
H.
Zhou
Department of Mathematics, Shijiazhuang Mechnical Engineering University,
Shijiazhuang 050003, People’s Republic of China
author
text
article
2008
eng
In this paper, a common fixed point theorem for $\psi$-weakly commuting
maps in L-fuzzy metric spaces is proved.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
47
53
http://ijfs.usb.ac.ir/article_315_aa6fa13685f0d564567d253b8e56287a.pdf
dx.doi.org/10.22111/ijfs.2008.315
FUZZY IDEALS AND FUZZY LIMIT STRUCTURES
Yueli
Yue
Department of Mathematics, Ocean University of China, Qingdao, 266071,
P. R. China
author
Jinming
Fang
Department of Mathematics, Ocean University of China, Qingdao,
266071, P. R. China
author
text
article
2008
eng
In this paper, we establish the theory of fuzzy ideal convergence on
completely distributive lattices and give characterizations of some topological
notions. We also study fuzzy limit structures and discuss the relationship
between fuzzy co-topologies and fuzzy limit structures.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
55
64
http://ijfs.usb.ac.ir/article_316_e3d8093b3eb52427ca38bd04776b8583.pdf
dx.doi.org/10.22111/ijfs.2008.316
SOME RESULTS OF INTUITIONISTIC FUZZY WEAK DUAL
HYPER K-IDEALS
L.
Torkzadeh
Department Of Mathematics, Islamic Azad University
of Kerman, Kerman, Iran
author
M.
Abbasi
Department Of Mathematics, Islamic Azad University
of Kerman, Kerman, Iran
author
M. M. Zahedi
Zahedi
Department Of Mathematics, Shahid Bahonar University Of Kerman,
Kerman, Iran
author
text
article
2008
eng
In this note we consider the notion of intuitionistic fuzzy (weak) dual hyper K-ideals and obtain related results. Then we classify this notion according to level sets. After that we determine the relationships between intuitionistic fuzzy (weak) dual hyper K-ideals and intuitionistic fuzzy (weak) hyper K-ideals. Finally, we define the notion of the product of two intuitionistic fuzzy (weak) dual hyper K-ideals and prove several Decomposition Theorems.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
65
78
http://ijfs.usb.ac.ir/article_317_d5e1b17cf8849cf020dee0e8e092a8ed.pdf
dx.doi.org/10.22111/ijfs.2008.317
GENERALIZATION OF ($\epsilon $, $\epsilon $ $\vee$ q)−FUZZY SUBNEAR-RINGS AND
IDEALS
P.
Dheena
Department of Mathematics, Annamalai University, Annamalainagar-
608002, India
author
S.
Coumaressane
Department of Mathematics, Annamalai University, Annamalainagar-
608002, India
author
text
article
2008
eng
In this paper, we introduce the notion of ($\epsilon $, $\epsilon $ $\vee$ q_{k})− fuzzy subnear-ring which is a generalization of ($\epsilon $, $\epsilon $ $\vee$ q)−fuzzy subnear-ring. We have given examples which are ($\epsilon $, $\epsilon $ $\vee$ q_{k})−fuzzy ideals but they are not ($\epsilon $, $\epsilon $ $\vee$ q)−fuzzy ideals. We have also introduced the notions of ($\epsilon $, $\epsilon $ $\vee$ q_{k})−fuzzyquasi-ideals and ($\epsilon $, $\epsilon $ $\vee$ q_{k})−fuzzy bi-ideals of near-ring. We have characterized($\epsilon $, $\epsilon $ $\vee$ q_{k})−fuzzy quasi-ideals and ($\epsilon $, $\epsilon $ $\vee$ q_{k})−fuzzy bi-ideals of nearrings.
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
79
97
http://ijfs.usb.ac.ir/article_318_b1c8298fc1fdcba2269072e05efde125.pdf
dx.doi.org/10.22111/ijfs.2008.318
Persian-translation Vol.5 No.1, February 2008
text
article
2008
eng
Iranian Journal of Fuzzy Systems
University of Sistan and Baluchestan
1735-0654
5
v.
1
no.
2008
101
106
http://ijfs.usb.ac.ir/article_2906_bce9f7073e7d8c924a02b83b217cc0f2.pdf
dx.doi.org/10.22111/ijfs.2008.2906